Qusetion about NDFD grid change

[Cheeznado]

I have a question and I hope someone on the board can answer. Supposedly in August there will be a change in the grids for the raw NWS NDFD data- from the current 5.0KM to 2.5KM. We use the grids for an application, and if the 5.0KM grids are no longer transmitted then we would have to make a difficult code change which could take months. We are hoping that the 5.0KM grids will continue to be sent out along with the 2.5KM.

 

Thanks

[blizznd]

i searched back through the NWS office of meteorology notifications and found this PNS that was sent out on April 1st about this....

 

http://www.nws.noaa.gov/om/notification/tin14-15ndfd-res.htm

 

Here is a small part of the message

 

Effective Tuesday, August 19, 2014, at 1400 Coordinated Universal

Time (UTC), the NWS will transition the spatial and temporal

resolution in the NDFD from experimental to operational status. 

After this transition, the operational NDFD will be available at

2.5km spatial resolution for all forecast times and at 1 hour

temporal resolution for the first 36 hours from NDFD issuance

time. These are the finest spatial and temporal resolutions at

which Weather Forecast Offices in the Conterminous United States

(CONUS) provide forecasts. Forecasts from NWS offices and centers

employing coarser resolutions will be mapped onto the finer

resolution NDFD grid.

 

This change will affect files containing data for the entire

CONUS, but will not affect Alaska, Hawaii, Guam, Puerto Rico and

the Virgin Islands, or the pre-defined 16 CONUS subsectors which

will remain at their current operational resolutions.

 

 

My assumption based on past changes is that once they change only the 2.5 km would be available.    But I DO NOT know that

for a fact and suggest you contact the POC for this

 

For technical questions regarding NDFD data, please contact:

 

  David Ruth

  Chief, Mesoscale Prediction Branch

  NOAA/NWS Office of Science and Technology

  Silver Spring, Maryland 20910

  [email protected]

 

For questions regarding this notice, please contact:

 

  Andy Horvitz

  National Weather Service

  Office of Climate Water and Weather Services

  Silver Spring, Maryland 20910

  [email protected]